Automatic weigher.



j. J. BE'ATY.

AUTOMATIC WEIGHER.

APPLICATION mm ma. 2x. i918.

Patented Sept. 17, 1.918.

INVENTOR JOHN J. BEATY ATTORNEY UNITED STATES PATENT OFFICE JOHN JJBEATY, or LAKE CITY, MINNESOTA.

AUTOMATIC WII'IGIIER.

To all whom it may concern.'

Be it .known that l, JOHN J. BEATY, a citizen of the United States, residing at Lake City, in the county of VVabasha and State of -Minnesota, have invented certain new and useful Improvements in Automatic Wveighers, of which the following is a specification.

The invention provides an appliance of novel structure Vfor use in connection with threshing machinery and milling mechanism for automatically weighing grain or like commodity, the saine operating to deliver the material in given quantity after being set without requiring any special care on thepart of the operator or other person.

The invention consists of a tilting hopper or like par-t adapted to receive the grain from a suitable source of supply, oppositely disposed receptacles or containers for receivin the grain from the hopper, such receptac es being connected with thehopper so asto move in Opposite directions, and a scale mechanism adaptedto be set and automatically tripped by the receptacles in their movement.

One of the main'features of the invention is the provision of an apparatus of the char- 'acter stated which is simple in construction embodying a minimum number of parts and effective and reliable in operation.

The drawing illustrates a preferred einbodimenty of the invention, however, it is to be understood'that ,in adapting the same to meet'different conditions, various changes in the form, proportion, and minor details f of construction may be resorted to without departing from.r the nature of the invention as claimed hereinafter. f 5 In the drawings: i 7 Figure 1 is an elevation of an automatic weighing device embodyingthe invention, parts being broken away. L

Fig. 2 is ahorizontal section on the line 2*,2 of Fig. 1.

Corresponding and like parts are referred to inthe following description and indicated -in both of the views of the drawings Vby like reference characters.

The numeral. l designates a spout which projects from` the threshingy machine, grain Specification of Letters Patent.

versa. :upward travel is thev one receiving the mate- Patented Sept. 17, 1918.

.Application led February 21, 191,8. Serial N o. 218,531.

bin, or other source of supply ofy the material to be delivered in measured quantity. A tilting hopper 2 is disposed so as to receive the grain or other commodity from the spout 1, and its bottom is oppositely inclined toa centrally disposed discharge 3. ySimilar or likereceptacles or containers 4 are mounted to receive a rectilinear lreciprocatory` movement. and are connected to opposite ends of the hopper 2 by means of links 5 which arev pivotally connected at their ends to the respective parts. The bottom of each receptacle or container 4 is inclinedinwardly and downwardlyas indicated at 6 to aflateral discharge 7. When the receptacles 4 are "at the limit of their upward movement, the discharge 7' is closed, and ,when at the limit of their downward movement, the discharge is fully opened as y'indicated most clearly in Fig. l. A vertically disposed guide 8 is arranged between the opposed sides of the receptacles 4 and serves to givedirection to the receptacles ink their reciprocating movements and to close the discharge openings 7 .thereof wheny the receptacles are at the limit of their upment in o osite directions z'. e. when one receptacle is moving upward, rthe other receptacleis traveling downward and vice The receptacle atl the limit'of its rial. to be weighed, and the receptacle at the lim-it of its downward movement is the one discharging the measuredV quantity of material contained therein. The axis of the hopper 21is`indicated at l0 and the discharge opening of the hopper moves from one Vsidetotheotherof a plane y.passing vertically through the l,airis 1Q,i as indicated by the full and dotted lines in Fig. 1. The hopper 2 tilts so as to bring its discharge opening 3 over the corresponding receptacle 4: at the limit of its upward movement soV as to discharge'thc material therein, and! the position of the hopperZ shifts as thereceptacles 4 move. Y. e A

lIhe scale mechanism comprises ya trip I1, a spring 12, and adjusting meansi 18-1Qf for varying the tension of the spring The trip 1 1 consists of armember pwot'lly supported at 13 and adapted to swing toA project one edge or the* other' in the path of adprojecting part 14 of the receptacles Af, The edges of thev pivotal memher V1:1 are of similar contour' so as to oil'er like resistance to the movement of the receptacles and'which is essential to securey accuracy of Weighing. Each edge of the trip comprisesV an' upper straight portion 15'- and a lower curved portion 1-'6. The spring 15y is of the4 helical contractile type, and one end is connected to the trip 11 as indicated at 17, and its opposite end is adjustably connected tothe guide- 8 wherebyV provision is had for varying the tension of the spring to cause the trip to oiier a' greater or' less resistance in a movement of the receptacles Wherebf the quantity of material tobe weighed at each operation may be varied and determined. It is to be noted that the spring 12 may bead'- justably connected at either en d tothe part to which the spring is attached, or thatany well known means may be resorted to for varying thetension of the spring in order to adapt the appliance for weighing varying quantities; For convenience, the means illustrated are preferred and consistof a longitudinally slotted plate 125'4 andffasten'- ing means 19f. The spring 12' is attached at its upper end to the plate 18 as indicated at 20; The fastening 19 preferably consists of an element mountedin the guide 8 and threaded to receive a Winged nut. The plate 18 is suitably graduated to indicate pounds or other quantity and is adapted' to cooperate ivith anindicator 21 provided on the guide 8. The projectionslfl carried by the receptacles el' may consist of studs or'the like which extend into the pathj of the' trip 11 so as to engage the edges thereof.

The operation of' thev appliance may be briefly stated as follovvs:-The grainV or other commodity to be measured isled tothe tilting hopper 2 by means or the spout 1. Assuming' that the parts are inn the position indicated by full lines inl 'Fiig.. 1,"`the grain delivered from the rspout v1 "passes intoV the hopperQl and is discharged therefrom into the uppermost receptacle 4. The projection 14 of this receptaclel is in contact with: the adjacent edge of the trip,l 11, the

' :latter offering a resistanceito theidownward movement of: the-4 receptacleproportionate to the tension of the spring T12. 'Aftenlthei receptacle has received a quantity of material sulicient to overcome the resistance offered by the trip 11, the latter is caused to turn about its pivot 13, thereby7 admitting of the receptacle .descending and at the same .time the .opposite receptacle ascends to a position to receive a charge. As the trip 11 moves the loifver'endof the' spring 12 moves from right togleit and after passing a dead point,

`lthe s pringlQ contracts slightly and effects a quick movement of the trip thereby bringing its opposite edge in contact with vt e project-ierix ILL o! the ascending receptacle. As the descending receptacle clears the lower end of `the guide;r 8, its discharge opening 9 is uncovered thereby dischargingA the grainorv other material contained in thel reL ceptacle; In the meantime, the empty receptacle which has moved upward receives a chargeofm-aterial, when the amount of the charge reaches a point to overcome the resistance of the trip, the operation just described is repeated. It will thus be understood that the action is automatic after the scale mechanism has been set se long as the material yis supplied tothe tilting hopper 2 by meanslo the" spent 1 .V

What' I clainr is 1:. i

I. A weighing' appliance of the character speci-lied, comprisingtwo receptaclesadapted toreciprocate vertically" in alternate opposite directions', the receptacle at its highest point receiving the material to: be weighed,

and the receptacle at itslowest point discharging the material previously supplied thereto in a predetermined:V amount, a trip `pivoted `media-Hy between the receptacles,

elements projectingirom the receptacles and? adapted' to'engage the trip and' sustain the receptacles in elevated position until they attain a given weight and deseendtand reverse the posi-tiert of the trip, and' a spring coacting with the tripy tohcld the latter in operative position to,A sustain the elevated receptacle until the Weight thereof overcomes the resistance of the spring.

2; AV weighing appliance as" set'ferth in claiml 1 with the addition of means' for varying the tension of' the spring' according 'to' a predetermined scale.`

A weighingl appliance of the character specified, comprising ag vertically disposed guide, receptacles upon opposite sides of the guide and having their bottoms inclined in- "waridly and'l downwardly, and having discharge openingsiinf theiirinner siides adjacent the bottoms and'adaptedto-beclosed bythe said guide, e hopper pivoted tol the guide intermediate of its ends and adapted to alternately discharge the receptacles, Vmeans connecting the receptacles; with opposite ends; 'ofthe'. hopper, atrip pivoted.` to

a side of the guide, elements projecting'from the receptacles andi adapted* to alternately engage theedges-z of thetripand enact therewith to sustain the receptacles in elevated terial to be weighed at each operation may position when receiving the material to be be varied. n 10 weighed, a spring coactmg with the pivoted In testimony whereof I aflix my signature trip to sustain the receptacles in elevated in presence of two witnesses.

position while receiving the material to be JOHN J. BEATY. weighed, and means for varying the ten- `Witnesses:

sion of the spring according to a predeter- W. H. PLETSGH,

mined scale, whereby the amount of ma- C. H. MILLER.

Copies o! this patent may be obtained for ve cents each, by addressing the "Commissioner of Patents, Washington, D. G. 

